FR1131008A - Very high frequency electron tube with beam electron current - Google Patents

Very high frequency electron tube with beam electron current

Info

Publication number
FR1131008A
FR1131008A FR1131008DA FR1131008A FR 1131008 A FR1131008 A FR 1131008A FR 1131008D A FR1131008D A FR 1131008DA FR 1131008 A FR1131008 A FR 1131008A
Authority
FR
France
Prior art keywords
high frequency
electron
current
tube
electron tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of FR1131008A publication Critical patent/FR1131008A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
    • H01J23/087—Magnetic focusing arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
FR1131008D 1954-09-22 1955-09-16 Very high frequency electron tube with beam electron current Expired FR1131008A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES40943A DE1129240B (en) 1954-09-22 1954-09-22 Magnetic bundling system for bundled guidance of the flow of electrons in a travel time tube, in particular traveling field tubes

Publications (1)

Publication Number Publication Date
FR1131008A true FR1131008A (en) 1957-02-14

Family

ID=7483807

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1131008D Expired FR1131008A (en) 1954-09-22 1955-09-16 Very high frequency electron tube with beam electron current

Country Status (5)

Country Link
US (1) US2844750A (en)
DE (1) DE1129240B (en)
FR (1) FR1131008A (en)
GB (1) GB786988A (en)
NL (1) NL200488A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL210816A (en) * 1955-09-22
US2945153A (en) * 1956-08-31 1960-07-12 Rca Corp Electron beam tube
US3007076A (en) * 1957-05-03 1961-10-31 Itt Traveling wave electron discharge device
NL107303C (en) * 1957-07-11
US2966609A (en) * 1957-11-22 1960-12-27 Gen Electric Magnetic structures for high frequency energy interchange apparatus
US3027484A (en) * 1958-03-29 1962-03-27 Kobe Kogyo Kabushiki Kaisha Periodic magnetic focussing system for travelling wave tubes
US2961562A (en) * 1958-05-05 1960-11-22 Gen Electric Oscillation suppression in high voltage electron guns
DE1276217B (en) * 1958-06-25 1968-08-29 Siemens Ag Electron beam tubes with speed modulation, especially running field tubes
US3155866A (en) * 1961-03-14 1964-11-03 Bell Telephone Labor Inc Magnetic focusing structure for traveling wave tubes
DE1277450B (en) * 1962-09-22 1968-09-12 Telefunken Patent Permanent magnetic focusing system for the bundled guidance of the electron beam of a traveling wave tube

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE689388C (en) * 1934-07-30 1940-03-19 Lorenz Akt Ges C Arrangement for deflecting the cathode ray in Braun tubes
GB494839A (en) * 1937-05-01 1938-11-01 British Thomson Houston Co Ltd Improvements in and relating to cathode ray apparatus
GB504802A (en) * 1937-11-01 1939-05-01 Frederick Hermes Nicoll Improvements in or relating to permanent magnet devices for producing axially symmetrical magnetic fields
DE973258C (en) * 1938-03-08 1959-12-31 Siemens Ag Magnetic pole shoe lens with a small focal length for electron-optical enlargements in electron microscopes
US2403529A (en) * 1942-04-30 1946-07-09 Rca Corp Electron microscope
US2619607A (en) * 1951-03-10 1952-11-25 Glaser Steers Corp Internal focusing device
DE893990C (en) * 1951-10-02 1953-10-22 Telefunken Gmbh Focuser for running field tubes
BE516533A (en) * 1951-12-29

Also Published As

Publication number Publication date
NL200488A (en)
DE1129240B (en) 1962-05-10
GB786988A (en) 1957-11-27
US2844750A (en) 1958-07-22

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